FORT WORTH, Texas — A judge has ordered a Texas teenager who used an “affluenza” defense in a fatal drunken-driving wreck to serve nearly two years in jail, a surprising sanction that far exceeds the several months in jail that prosecutors initially said they would pursue.

Ethan Couch, who was appearing in adult court for the first time after he turned 19 on Monday, received 180 days for each of the four deaths in the June 2013 crash.

A psychologist had suggested Couch had “affluenza,” and blamed his parents.